EVAP System Pressure Sensor Circuit Malfunction *

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Trouble Ticket Help Requests for DTC P0450

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2001 Mercedes-Benz S500 Guard 5.0L no ventingVIN: WDBNG75J81P0450: fuel tank pressure sensor. customer reports when filling tank excessive pressure will
shoot back when nozzle is removed - we removed the left
rear fender liner and tested the vent valve y58-4 which we
had previously replaced - this valve is open without
electrical signal to allow air to...

2001 Mercedes-Benz S500 Guard 5.0L no ventingVIN: WDBNG75J81P0450: fuel tank pressure sensor. customer reports when filling tank excessive pressure will
shoot back when nozzle is removed - we removed the left
rear fender liner and tested the vent valve y58-4 which we
had previously replaced - this valve is open without
electrical signal to allow air to...